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Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 102 |
1 files changed, 102 insertions, 0 deletions
@@ -1,3 +1,105 @@ +2007-05-07 Thomas Schwinge <tschwinge@gnu.org> + + [bug #15295 --- ``Mach lets processes write to I/O ports''] + + * i386/Makefrag.am (libkernel_a_SOURCES): Add `i386/i386/io_perm.c', + `i386/i386/io_perm.h', `i386/i386/machine_task.c', `i386/i386/task.h' + and remove `i386/i386/io_port.h', `i386/i386/iopb.c', + `i386/i386/iopb.h'. + + * i386/i386/io_port.h: Remove file. + * i386/i386at/kd.c: Don't include <i386/io_port.h>. + (vga_port_list, kd_io_device, kd_io_map_open, kd_io_map_close): Don't + define and don't use anymore. + + * include/stddef.h: New file. + + * i386/i386/io_perm.c: Include <string.h>, <device/device_emul.h>, + <ipc/ipc_space.h> and don't include <oskit/ds_oskit.h>. + (io_perm_device_emulation_ops): New variable. + (dev_open_alloc, setup_no_senders): Remove declarations. + (convert_io_perm_to_port, convert_port_to_io_perm, io_perm_deallocate): + Rewrite. + (no_senders): New function. + (i386_io_perm_create, i386_io_perm_modify): Rewrite partially, to adapt + to the GNU Mach environment. + * i386/i386/io_perm.h: Include <device/dev_hdr.h> and + <ipc/ipc_types.h>. + (io_perm, io_perm_t): New structure and accompanying type definition. + (IO_PERM_NULL): Define. + * i386/i386/locore.S (ktss): Move variable to... + * i386/i386/ktss.c: ... here, make it a ``struct task_tss''. + (ktss_init): Initialize the `task_tss' structure and the i/o permission + bit map. + * i386/i386/ktss.h: Adapt to that. + * i386/i386/machine_task.c (machine_task_module_init): Adapt the `zinit' + call to the GNU Mach environment. + * i386/i386/mp_desc.c: Include <machine/ktss.h>. + * i386/i386/tss.h: Include <machine/io_perm.h>. + (task_tss): New structure, equivalent to the OSKit-Mach one. + * i386/include/mach/i386/mach_i386.defs: Don't include + <device/device_types.defs>. + (device_list_t): Remove type. + * i386/include/mach/i386/mach_i386_types.h (device_list_t): Remove type + definition. + +2007-05-07 Marcus Brinkmann <marcus@gnu.org> + + [bug #15295 --- ``Mach lets processes write to I/O ports''] + + * i386/i386/iopb.h, i386/i386/iopb.c: Obsolete files removed. + + * i386/i386/pcb.c (switch_context): Update the I/O permission + bitmap from stack_handoff() here (not only in stack_handoff()). + + * i386/i386/machine_task.c (machine_task_module_init): Set + ZONE_COLLECTABLE and ZONE_EXHAUSTIBLE flags for the iopb zone. + Requested by Roland McGrath <roland@frob.com>. + + * i386/i386/io_perm.h: New file. + * i386/i386/io_perm.c: New file. + * i386/i386/machine_task.c: New file. + * i386/i386/mp_desc.h: (struct mp_desc_table): Change type of ktss to + struct task_tss. + (mp_ktss): Likewise for array of pointers to the struct. + * i386/i386/mp_desc.c: Include `machine/tss.h' and `machine/io_perm.h'. + (mp_ktss): Change type to array of struct task_tss. + (mp_desc_init): Cast pointer to x86_tss into pointer to task_tss, + and use size of struct task_tss instead size of struct x86_tss. + Initialize the task_tss structure. + * i386/i386/pcb.c: Include `stddef.h' and `machine/tss.h'. + (iopb_create, iopb_destroy): Prototypes removed. + (curr_ktss): Cast pointer to base_tss to pointer to struct + task_tss. + (switch_ktss): Always use kernel TSS. + (update_ktss_iopb): New function. + (stack_handoff): Call update_ktss_iopb. + (pcb_module_init): Do not call iopb_init. + (pcb_terminate): Do not call iopb_destroy. + (thread_setstatus): Remove local variable tss. + (thread_getstatus): Rewrite i386_ISA_PORT_MAP_STATE case handler. + * i386/i386/task.h: New file. + * i386/i386/thread.h: Do not include `i386/iopb.h'. + (struct i386_machine_state): Remove member io_tss. + * i386/include/mach/i386/mach_i386.defs [KERNEL_SERVER]: Include + `machine/io_perm.h'. Define intran, outtran and destructor. + (io_port_t): New type. + (io_perm_t): Likewise. + (i386_io_port_add): Interface removed. + (i386_io_port_remove): Likewise. + (i386_io_port_list): Likewise. + (i386_io_perm_create): New interface. + (i386_io_perm_modify): Likewise. + * i386/include/mach/i386/mach_i386_types.h [MACH_KERNEL]: Include + `i386/io_perm.h'. + [!MACH_KERNEL]: Define types io_port_t and io_perm_t. + * kern/task.c (task_init): Call machine_task_module_init. + (task_create): Call machine_task_init. + (task_deallocate): Call machine_task_terminate. + (task_collect_scan): Call machine_task_collect. + * task.h: Include `machine/task.h'. + (struct task): Add member machine. + 2007-05-06 Thomas Schwinge <tschwinge@gnu.org> * device/kmsg.c: Include <device/ds_routines.h>. |